Big Rigs & SemisDiscussion of Diesels Used for Transportation of Goods

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its a vision with 209000k. in the last year i have replaced two egr valves and coolers. replaced the crank pos sensor twice as well as 3 eup pumps! just got done replacing the cooler and valve yesterday. got it all done and drove about ... JOIN NOW TO REMOVE TRACER

its a vision with 209000k. in the last year i have replaced two egr valves and coolers. replaced the crank pos sensor twice as well as 3 eup pumps! just got done replacing the cooler and valve yesterday. got it all done and drove about 400k today and guess what...now i have a strange whine while accelerating. checked for boost leaks and found nothing. check air fittings and no change. only makes this noise while under accel.

We had a 2000 Mack and a 2001. I don't remember the model numbers because I'm not that familiar with Macks but they were great to start out with, then they started lacking power, parts were getting harder and harder to get, service sucked, fuel mileage sucked, and the overall durability wasn't the same as our Internationals. So we traded them for a 2005 International 9900i, and a 2006 International 9400i

its a vision with 209000k. in the last year i have replaced two egr valves and coolers. replaced the crank pos sensor twice as well as 3 eup pumps! just got done replacing the cooler and valve yesterday. got it all done and drove about 400k today and guess what...now i have a strange whine while accelerating. checked for boost leaks and found nothing. check air fittings and no change. only makes this noise while under accel.